Preparing 0.13 release

[alanz]

No description provided.

[lukel97]

Did you use git log to generate the changelog? We could wrap that up into a nice script to append into Changelog.md

[alanz]

@bubba no, I just literally copy/paste the github PR view of closed PRs and run a macro over to turn the issue numbers into links. And then hand edit a bit.

We should have a script, like the ones I was looking at recently, but I did not bookmark them, and figured I would do it the old way.

[alanz]

@bubba I will only be able to look at this tomorrow night again.

If the CI passes and you feel like tagging a release, you are welcome to.